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  1. #1

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    Exclamation RTiA7 and RTiA6 Crossover Upgrades - A Slightly Different Approach

    I decided to finally upgrade the crossovers in my HT speakers. I purchased 3 of Trey's (VR3) beautiful aluminum binding post plate kits, but after I got them decided I wanted to do something slightly different. Instead of stacking I wanted a more modular design and decided to mount two panels horizontally on the rods, the top panel would have the tweeter/mid circuits on it and the bottom panel would have the woofer circuits. I wanted to be able to slide each panel onto the rods, so I purchased custom cut unclad FR4 black boards (PCB) to which I attached square hollow aluminum tubing with 3M VHB tape. I needed a slightly longer length than the rods that came with the kit and I wanted to use stainless steel, so new rods were purchased. At the rear end I used one of the Delrin plates that came with the kit. I mounted a Molex type connector block to it and the mating connector to the internal wires. This makes it a breeze to remove the crossovers if needed. Of course, I stuffed the boards with Sonicaps and Mills. All point to point wiring with panels installed to cover the wiring. I used stainless steel socket head bolts and Hurricane nuts to attach the new crossover plates to the cabinet for a complete custom look.

    RTiA7-1.JPG

    The new RTiA7 crossovers

    RTiA7 original.JPG

    The original RTiA7 crossovers minus the inductors

    RTiA7-5.JPG

    Rear view

    RTiA6-1.JPG

    The new RTiA6 crossover

    RTiA6-2.JPG

    View of the other side

    They are still burining in, but right away I noticed that the soundstage width increased dramatically, the slightly edgy treble is now much smoother and there is more weight to the mids.
    Last edited by F1nut; 04-03-2014 at 01:16 AM.
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  2. #2

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    Wow you did an awesome job, those look great!
    Theater Room: Pioneer Elite SC-35, RTi12's, Csi5, Fxi5's, Fxi3's, ED A5-350 sub, Optoma HD20, 92'' Elite Screen, Sony BDPS790, Xbox One, APC H15, MIT Exp 2 SC's, Pepster PC's

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  3. #3

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    Default

    Name:  RTiA7-8.JPG
Views: 161
Size:  381.8 KB

    Forgot one, with the cover panels installed
    'Political Correctness'.........defined

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  4. #4

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    I don't know anything about rebuilding crossovers nor mean any offense to Trey's design but that seems like a simpler and cleaner design as long as the caps aren't much larger.
    Theater Room: Pioneer Elite SC-35, RTi12's, Csi5, Fxi5's, Fxi3's, ED A5-350 sub, Optoma HD20, 92'' Elite Screen, Sony BDPS790, Xbox One, APC H15, MIT Exp 2 SC's, Pepster PC's

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    Nice work Jesse, gives me some inspiration when the times I want to do crossover upgrades to my RTiA family. Been practicing soldering using an iron lately instead of my work um butane torch.
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  6. #6

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    that seems like a simpler

    It was actually very labor intensive. I had to cut the SS all thread to length, rethread the cut ends and smooth out the burrs. The tubing walls are extremely thin, so I had to rough cut them with a Dremel cut off wheel, then hand file to length. The lay out took a while to get it just right, then figuring out where to drill the holes took a while as well. I was able to use the first A7 board as a template for the second, so that went faster. I used pin/socket connectors for the wires, but had to cut them shorter, a real PITA. Then soldering them to the pins of the Molex without melting the Delrin was yet another challenge. There's a lot more, but I'm sure you get the idea.

    Thanks for the compliment.
    'Political Correctness'.........defined

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    Very nice job Jesse! Seems like a "less crowded" design. Congratulations and enjoy the improved sound.
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    Very nice Jesse! Enjoy them.
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    Nice job looks like all your hard work paid off. How many hours did you have to put into the project?

  10. #10
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    Beautiful work!
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    Nice work Jesse!

    Fyi, I've cut aluminum similar to the square hollow spacers with my compound miter saw using a carbide tip blade - fast and neat.
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills, polyswitches removed, Lg Solen inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR binding posts, upgraded IC Cable, Black Hole Damping Sheets (3" strips) installed on back wall behind MW's & Tweeters, interior of cabinets sealed, AI-1 interface with 1000VA transformer

  12. #12

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    Nice work!

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    Too bad they are stuffed inside the speaker.

    I would almost want them fully external with a see-through plexi cover to show off my work.

    Its kinda like a hot rodded car..... you gotta be able to just pop the hood to show off the goodies easy .


    If I ever get my LSi's modded, I would love for the new crossovers to look like that. Work of beauty Jesse!
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    I've tried to come up with some off the wall remark, but instead I find myself in agreement with all here



    awesome job

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    Beautiful work Jesse. Looking forward to your listening impressions of the improvement after they break in for awhile.

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    Great job Jesse!
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

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    Awesome skills enjoy the improved sound.

    Cheers
    Roger

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    Very clean job Jesse,but I thought you were woodworker.

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    Good job!!!

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    Very awesome job man!! Yeah i agree, i would want to still see them inside the speaker.

    How about photo of them framed on the wall behind and above the speakers? Haha.. that would do it! ;)


    Would love to one day do mods formu lsim when i get bored.. maybe 5-10 years from now.. new 14 year old house has be busy! haha.
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  22. #22

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    Definitely deserve an external mount.

    They are still burining in, but right away I noticed that the soundstage width increased dramatically, the slightly edgy treble is now much smoother and there is more weight to the mids.
    This is awesome to hear. Some time I want to upgrade my A9's, I'd love to smooth out the treble even more than the Parasound did.
    Last edited by Inspector 24; 04-03-2014 at 05:26 PM.
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  23. #23

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    Im sure everyone would like to know how much and how long did this job take?? Ok atleast how much more then the parts from the mod master himself?
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  24. #24

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    Thanks guys, much appreciated.

    Cost, you can price the caps and resistors at Sonic Craft. The binding post plates you can price at VR3mods. I would guess all the rest was about $150.00. Time, about 2 days (16 hours) for everything.
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  25. #25

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    wow, clean, impressive...
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    Wow very nice! Maybe I should of had you do mine instead of Tray...j/k Tray did a great job and the sound is so much better.
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  27. #27

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    Looks great Jesse!

    Excellent take on the stack design that I had never really thought about. :)
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  28. #28

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    Quote Originally Posted by VR3 View Post
    Looks great Jesse!

    Excellent take on the stack design that I had never really thought about. :)
    Do I sense a new "version" of the mods coming
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  29. #29

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    Jesse had called me a few days ago when he completed these and as I was telling him -

    I can do my Fortress design in about 3-4 hours now from start to finish. This design being based around the tubing to have the substrate attached to slows it down tremendously due to how you have to cut it.

    I have changed a lot of what I do and take in modification wise.

    I love to see stuff like this though! :)
    www.Vr3Mods.com ///// www.Version3Audio.com

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  30. #30

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    Wow! Those look very very nice.
    --Gary--

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